Adjustable support eob



H. SIEMU NDA ADJUSTABLE SUPPORT FOR TELEPHONES.

' APPLICATION FILED DEC. 26, 1918.

1,325,? 59. Patented Dec. 23,1919. 5

. 3 SHEETS-SHEET I.

I/III/III/IIIIIIIIIII/{IIIIIIA 'llli ATTORNEY H. SIEMUND.

ADJUSTABLE SUPPORT FOR TELEPHONES. APPLICATION FILED 0Ec.26. 1918.

Patented Dec. 23, 1919.

3 SHEETS-SHEET 2- INVENTOR.

BY Q

' ATTORNEY H. SIEMUND.

ADJUSTABLE SUPPORT FOR TELEPHONES.

Patented Dec. 23, 1919.

3 SHEETS-SHEET 3- APPLICATION FILED DEC. 26, I9?- IN V EN TOR.

till

HERMAN SIEIVIUND, OF CHICAGO, ILLINOIS.

ADJUSTABLE SUPPORT FOR TELEPHONES.

Specification of Letters Patent.

Patented Dec. 23, 1919.

Application filed December 26, 1918. Serial No. 268,381.

To all whom it may concern Be it known that I, HERMAN SIEMUND, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Adjustable Supports for Telephones, of which the following is specification.

This invention relates to improvements in adjustable supports or brackets for telephones of a type that can be attached to any suihciently strong stationary support, such as the wall of a room, a desk, table or the like, and it consists in certain peculiarities of the construction, novel arrangement and operation of the various parts thereof as will be hereinafter more fully set forth and specifically claimed.

The principal object of the invention is to provide an adjustable support or bracket for telephones in which spring-actuated balancing mechanism is employed, to the end that the tiltable arm or member of the support carrying the telephone will be automatically maintained at any inclination to which it may be moved, and to so construct and arrange the relatively niova ble parts of said mechanism that they will be held in frictional contact in all positions of the support. A further object of the invention is to provide a support or bracket of the above mentioned general character, which shall be simple and inexpensive in construction, strong, durable and efficient in operation and so made that parts thereof can be readily in terchanged in order to convert it from one type of support to another. Furthermore, to furnish a support or bracket which shall have a wide range of adjusta bility, that is, the same can be raised and lowered to various angles from the vertical, turned on its pivot or mount, or extended or retracted horizontally.

Other objects and advantages of the invention will be disclosed in the sub'joined description and explanation.

In the accompanying drawings which serve to illustrate the invention- Figure 1 is a view in side elevation of one form of the invention showing a portion of the extensible part of the support omitted for convenience of illustration.

Fig. 2 is a fragmental sectional view taken on line 22 of Fig. 1 looking in the direction indicated by the arrows.

Fig. 3 is a plan sectional view taken on line 33 of Fig. 1 looking in the direction of the arrows.

Fig. 4 is a similar View to that shown in Fig. 1 illustrating a modification in the construction of the spring actuated counterbalancing mechanism of the support.

Fig. 5 is an edge or end view of a portion of the relatively movable members of said mechanism showing the means for securing the spring thereof to said parts.

Fig. 6 is a plan sectional view taken on line 6-6 of Fig. d.

Fig. 7 is a view in side elevation of another modified form of the support showing the tiltable or instrument carrying arm thereof shortened for the convenience of illustration.

Fig. 8 is a view taken on line 8-8 of Fig. 9 looking in the direction of the arrows, and

Fig. 9 is a central sectional view taken on line 99 of Fig. 8 looking in the direction indicated by the arrows.

Like numerals of reference refer to corresponding parts throughout the different views of the drawings.

The reference numeral 10 designates the base or mount of the support, which may be of any suitable size, form and material and may be secured to a table, desk or the like in a vertical position by means of screws 11 as shown, or it may be equipped with other means for securing it to a suitable support. The upper end of the base or mount 10 is provided with a spindle 12 which fits in the sleeve or tubular portion 13 of the lower member or part 14: of the housing for the spring employed for actuating the members of the housing so as to counterbalance the weight of the telephone and its connections 011 the tiltable arm of the support as will be presently explained. As is clearly shown in Figs. 1, 2 and a of the drawings the part 14: is segmental in shape and by preference is made integrally with the sleeve 13 and has near its reduced portion an unthreaded opening 15 for the reception of a bolt 16 used to connect the other member or part 17 of the housing thereto. The part 17 is of substantially the same shape and construction as the part 14 except that it has an upwardly extended portion 18 which is provided with a vertical socket 19 the upper portion of which socket is annularly enlarged as at 20, see Fig. 2 of the drawings. The reduced portion of the part 17 is provided just below the part 18 thereof with a screw threaded opening 21 which registers with the opening 15 in the part 14 and is for the reception and engagement of the bolt 16 which as before stated secure the parts 14 and 17 together. On their adjacent surfaces around the openings 15 and 21 therein the parts 14 and 17 are provided with registering cavities 22 to form a chamber or container for oil or other suitable lubricant. Each of the members 14 and 17 is provided on its inner surface near its peripheral edge with a groove or cavity 23 which register with one another as shown, and in the construction illustrated in Fig. 1, form a receptacle for an expanding spring 24 which rests at its ends against lugs 25 carried by the members 14 and 17 and extended into the channels or grooves 23 thereof near its ends. One of these lugs 25 is secured to and extended from one end of the housing member 14 into the groove 23 of the member 17 while the other lug 25 is secured to the opposite end of the member 17 and extended into the groove 23 of the memberv 14 as will be readily understood by reference to Figs. 1, 4 and 5 of the drawings 'in which views it will be understood that the actuating spring is interposed between said lugs. Surrounding the bolt 16 is a washer 26 which is located between the head 27 of the bolt and the adjacent surface of the housing member 14 and mounted on the opposite end of the bolt is a lock nut 28 used in connection therewith for clamping the members 14 and 17 together. Asis clearly shown in Fig. 2 of the drawings, the upper end of the socket 19 is enlarged annularly as at 20 and has fitted therein a collar 28 which has its walls spaced from a spindle 29 which is inserted in the socket 19 with a driving fit. The upper portion of the spindle 29 is located in a socket 30 in the lower portion of a rod or tube 31 which constitutes the telephone carrying arm. The lower portion of the member 31 may be fixed within the socket 19 and collar 28 by means of a set screw 32 seated in the upper portion of the part 18 of the member 17 of the housing. Located slidably in the upper end of the member 31 is a rod 33 on the upper portion of which is mounted a laterally extended bracket 34 to which one end of one of the links 35 of a lazy-tongs of the ordinary and well known construction is pivotally secured. The lower end of the adjacent link 35 of said tongs is pivotally secured to another bracket 36 on the lower portion of the arm or member 31 as is clearly shown in Figs. 1 and 4 of the drawings. The tele phone, not shown, may be mounted on the other or free end of said tongs in any well known way, and it is obvious that by this arrangement the telephone can be moved in a horizontal direction with respect to the arm or member 31 to any desired point within the limit of the extension of said tongs.

The modified construction of the device shown in Figs. 4 to 6 inclusive consists in employing a contracting spring 24 instead of an expanding spring as is used in the construction shown in. Figs. 1 to 3 inclusive and above described. In this modification each of the lugs 25 is provided with a slot 37 through which the ends of the spring 24 may be extended and bent over on their outer portions so as to lie in the depression or counter sink 3S surrounding said slots with which each of the lugs 25 is provided. \Vith the above exceptions the construction shown in Figs. 4 to 6 inclusive is identical with that shown in Figs. 1 to 3 inclusive.

In Figs. 7 to 9 inclusive is shown another modification in the construction of the support which consists in the employment of abase or mount 10 having on its upper end a spindle '12 as in the other constructions. In this modification the housing for the actuating spring consists of two circular members 39 and 40 each of which has near its periphery a channel 41 about semicircular in cross section which register with one another when the members are secured together by means of a bolt 16 of the same construction and in the same manner as the housing members 14 and 17 above described. Each of the members 39 and 40 is provided inwardly of the channels 41 with a channel 42 which forms a circle around the bolt 16 as is clearly shown in Figs. 8 and 9 of the drawings. Each of the members 39 and 40 is provided in its channel 42 with a projection 43 which are adapted to travel in said channels in the movement of the parts 39 and 40 in the operation of the support. The member 39 is provided with an arm. or extension 44 at its lower portion which has a socket 45 for the reception of the spindle 12 on the base or mount. The member 40 has on its upper portion a socketed extension -16 to receive the arm or tube 47 which carries the telephone indicated as a whole by the numeral 48 and shown by dotted lines in Fig. 7 of the drawings. Each of the mem bers 39 and 40 is provided on its inner surface around the opening in which the bolt 16 is located with depressions 49 which register with one another when said members are secured together and form a container for oil or other suitable lubricant. Located in the grooves 41 of the housing members 39 and 40 is an actuating spring 50 which has one of its ends secured by means of a screw 51 or otherwise to the member 40 and its other end secured in a similar wayor otherwise to the other member 39 of the housing. The ends of this spring are by preference connected to the inner peripheral walls of the channels 41 and said spring may be of any desired length so as to extend a suflicient distance circumferentially in the channels of the housin The lower portion of the arm 4E7 which is preferably curved as shown may be fixed in the socket of the extension 46 by means of a set screw 52 seated in said extension. Mounted on the arm or member 4:7 at suitable distances apart are looped members 53 through which the cord leading to the telephone 48 may be passed and held thereby. The upper end of the arm 47 has pivotally mounted thereon a depending bolt 5-1 on the lower portion of which is swiveled the upper end of a bracket 55 which carries at its lower end a clamp 56 to engage the neck or upper portion of the telephone. By this arrangement it is obvious that the telephone will have not only a pivotal connection with the arm or member 47 but also a swiveled connectiontherewith. The pins or projections located in the channels 4-2 of the housing members 39 and 40 act as stops when they contact with each other and thus serve to normally hold the supporting arm or member 47 in an upright position.

From the foregoing and by reference to the drawings, it will be understood and clearly seen that as the members of the housing for the spring of each of the construc tions are held in frictional contact by means of the bolt and nut thereon and as each of these housings is provided with an actuating spring the relatively movable parts will be held or maintained in any position to which they may be moved and the weight of the telephone and its connection with the tiltable arm or member will be counter balanced by the action of the sprin While T have shown and described the invention as adapted for the support of telephones and as rigidly securing the mount or base to a suitable support, yet I desire it to be understood that I do not wish to limit myself to the use of the sup port for any particular article or in rlgldly fixing the base, as the support may be used as a music stand or support, or for various other articles in which the base need not necessarily be fixed in position.

Having thus fully described my invention, what I claim as new and desire to secure'by Letters Patent is- 1. In a device of the class described, the combination with a suitably supported base, of a housing comprising a pair of members rotatably connected together face to face in frictional contact with one another, one of said members mounted on the base against rotary movement in a vertical plane and the other of said members mounted for such movement, an actuating spring interposed between and housed by said members and in tit operative engagement therewith, and a telephone carrying arm extended upwardly from the last named housing member.

2. Tn a device of the class described, the combination with suitably supported base, of a housing comprising a pair of members rotatably connected together face to face in frictional contact, one of said members swiveled on the base but mounted against rotary movement in a vertical plane, the other of said members mounted for such movement, an actuating spring interposed between and housed by said members and in operative engagement therewith, and a telephone carrying arm swiveled on and detachably connected at one of its ends to the last named housing member and extended upwardly therefrom.

3. Tn a device of the class described, the combination with a suitably supported base, of a housing comprising a pair of members rotatably connected together face to face in frictional contact and each having on its inner face a curved channel registering with the channel of the other member, one of said members mounted on the base against rotary movement in a vertical plane and the other of said members mounted for such move ment, an actuating spring interposed between said members in the channels thereof and in operative engagement with said members, and a telephone carrying arm mounted on and extended from the last named housing member.

l. In a device of the class described, the combination with a suitably supported base, of a housing comprising a pair of members located face to face in frictional contact with one another, one of said members having an unthreaded opening therethrough and the other of said members having a threaded opening therethrough to register with the first named opening, a screw bolt located in said openings but in screw threaded engagement with one of said openings only, means on the ends of said bolt to lock the housing members thereon, one of said housing members swiveled on the base but mounted against rotary movement in a vertical plane, the other of said members mounted forsuoh movement, an actuating spring interposed between said members and in operative engagement therewith, and a telephone carrying arm extended from the last named housing member.

5. In a device of the class described, the combination with a suitably supported base, of a housing comprising a pair of members located face to face in frictional contact with one another, one of said members having an unthreaded opening therethrough and the other of said members having a threaded opening therethrough to register with the unthreaded opening, a screw bolt located in said openings but in screw threaded engagement with one of said openings only, means ment therewith, a telephone carrying arm on the ends of said bolt to lock the housing extended from the last named housing memmembers thereon, one of said housing memher, and means for adjust-ably connecting bers swiveled on the base but mounted the telephone to said arm.

against rotary movement in a vertical plane, HERMAN SIEMUND. the other of said members mounted for such movement an actuating spring interposed between said members in operative engage- Vvitnesses C. CASEY, CHAS. C. TILLMAN. 

